JP2010501060A5 - - Google Patents

Description

<Detailed explanation>
A preferred rectangular vent device of the present invention is illustrated in FIGS. 1-7 and designated generally by the numeral 30. FIG. The venting device 30 can be mounted in a normal closing position on the aperture 32 of the structure 34 (FIG. 6), indicating an area that needs protection from the occurrence of an unexpected overpressure. It fits. In this regard, the vent apparatus 30 of the present invention, in the format is shown in Figure 1-7, or, for example, as shown in FIG. 15, 17, and 20-22, together with alternative frame support members It should be understood that it may be provided to the user.

For example, a rectangular metal frame element 36 may be mounted and secured on the structure 34 in a relationship surrounding a vent 32. The opening 38 inside the frame element 36 is substantially aligned with the aperture 32 of the structure 34. The frame unit 40 of the vent device 30 is mounted on the frame element 36 and the underlying structure 34. The frame unit 40 has four outwardly curved lip portions 42 and 44 that are spaced apart from each other and integrated with a rectangular base portion 46. Series of annular flange 48 which is curved inwardly is fixed to the frame element 36, extending through the outer surface of the base portion 46 of the frame unit 40, and, for fitting the stud 52 projecting outside the side of the respective An opening 50 is defined. The nut 54, each stud 52 is screwed to the washer 56 engages placed against the outer surface of the base portion 46 of the frame unit 40 (engage). Preferably, a segmented, rectangular, elastic gasket 58 made of silicon rubber or the like is disposed between the frame element 36 and the base portion 46 of the frame assembly, and each of the frame units 40 to fit the annular flange 48 therein with an opening of a series. Alternatively, in order to fix the frame unit 40 to the structure 34, a bolt that extends through the structure 34, the frame element 36, and the base portion 46 of the frame unit 40 may be provided. The nut 54 into which each stud 52 is screwed is used to securely fix the frame unit 40 and, consequently, the device 30 to the structure 34 aligned with the corresponding vent 32. Useful.

The vent structure 60 of the device 30 is a spring steel panel 64 and a second spring steel panel 66 that are both the same size and have outer dimensions that substantially correspond to the width and length dimensions of the frame 40. constructed, including a vent unit 62 of laminated composite (Figure 5). Materials appropriate spring steel, hardened 301,304,316,316L, and a 316LTi stainless steel. Instead of stainless spring steel, the panels 64 and 66, in accordance with known metal curing techniques, rolling, tempering, and / or were cured switching applied by annealing, for example, Inconel, titanium, nickel, or, It may be made from other spring steel metals, such as Hastelloy. The panels 64 and 66 have a series of spaced apart apertures 68 arranged on the outer periphery thereof, the apertures 68 of the panel 64 being connected to the respective apertures 68 of the panel 66. Aligned. The apertures 68 are arranged to align with corresponding openings 50 defined by an annular flange 48 integrated with the base 46 of the frame unit 40.

In order to provide reinforcement to the backstop 8 6, on the surface of normal rearmost Bas Kkusutoppu 86, as shown in FIG. 2 and 3, it may be provided a pair of struts 92. As can be seen from these figures, each strut 92 includes an inner leg end 94 that is secured to the lateral portion 46 a of the base portion 46 of the frame unit 40. The leg middle portion 96 of each column 92 forms an angle with respect to the central portion 84 of the backstop 86 as shown in FIG. The leg outer end 98 of each column 92 is attached to the adjacent surface of the central portion 84 of the backstop 86 proximate to the curved portion 90.

In operation, a resilient gasket 58 is placed over the frame element 36 in alignment with a stud 52 that extends through the resilient gasket. Next, for example, a shape and structure vent device 30 as shown in FIG. 1 is placed on the frame element 36 and the nut 54 is tightened to securely secure the device 30 to the structure 34. The outer margin of the annular flange 48 defining the opening 50 reaches the bottom of the frame element 36 to prevent over compression of the elastic gasket 58, while at the same time the elastic gasket 58 is inside and around the protected area. seal it should be noted that is sufficiently compressible to so that the between the atmosphere.

Overpressure condition within the confined space to be protected by the vent device 30, the area of the panel 64 and 66 between the end of the adjacent slit 70 can be sufficiently dissect reached Relais bell, furthermore, low intensity Upon reaching the elongated parts 78 and 80 and the sheet 82 along the edges aligned with the line 72, the pressure release 74 of the panels 64 and 66 opens and curves around the respective hinge region 76. The pressure release 74 of the vent unit 62 moves with the panel 64 engaging the adjacent face of the backstop 86 from their initial position closing the vent 32 to a selected opening position. To do. Backstop 86 to stop the bending operation of the pressure release unit 74 of the panels 64 and 66, limiting the kinetic energy of the operation of the relief portion 74 of the vent unit 62, to absorb, suppress, resulting, corresponds The rocking of the pressure release part 74 through the circular arc is prevented from exceeding the elastic energy coefficient and elastic coefficient of the hinge region 76 of the panels 64 and 66 . Therefore, since the elastic energy coefficient and elastic modulus of the spring steel panels 64 and 66 do not exceed, this limitation on the swinging motion of the pressure release portion 74 to an angle of about 90 ° is the limitation of the stainless spring steel panel 64 And 66 of the pressure relief 74 is guaranteed to return from their open position to their initial position.

FIG. 3 is a schematic cross-section in the normal operating position of the vent device 30 protecting the trapped zone from an unexpected overpressure caused by, for example, an explosion or a fast burning flame. FIG. The pressure release portions 74 of the panels 64 and 66 of the vent unit 62 immediately open completely around the respective hinge region 76 in order to release the high pressure in the protected region. The backstop 86 is stopped by limiting the degree of swinging motion of the pressure release portion 74 around each hinge region 76 as a result of the engagement between the outer surface of the panel 64 and the backstop 86. To help. Inside of the curved portion 88 extending in the transverse direction of the backstop 86, the pressure releasing portion 7 4 of the panel 64 and 66, as closely to match the curved shape of the inner bend 88, adjacent the hinge area of the panel 64 Against 76, it is strategically placed. The smoothly changing curvature of the curved portion 88 inside the backstop 86 is such that the hinge region 76 of the pressure release 74 of the vent panels 64 and 66 is at high pressure operation and during its opening, the hinge region 76 of the panels 64 and 66. As a result of the high force applied to the plate, it prevents bending around the crease line, which tends to cause separation of the pressure release 74 from the respective panels 64 and 66. Further, the curve of the innermost curved portion 88 of the backstop 86 has a smoothly curved surface for removing kinetic energy generated in the opening of the panel. Similarly, the curvature of the outer margin of the pressure release portion 74 of the vent panels 64 and 66 around the curved surface of the curved portion 90 of the backstop 86 is absorption of kinetic energy from the opening of the pressure release portion 74, The material of the spring steel to the extent that it contributes to restraint and removal, for example, as shown in FIGS. 1 and 6, to prevent the pressure release portions 74 of the spring steel panels 64 and 66 from returning to their initial positions. Prevents the yield point and tensile strength from being exceeded.

Were die cut frame elements 436 (die cut) central portion 484 preferably has the same shape as shown to bus Kkusutoppu 86 in FIG. 3, therefore, has the innermost bend and an outer bend Or curved away from the rectangular perimeter of the frame element 436 to form an outwardly directed backstop 486 having the shape of the backstop 186.

Vent device 530 is also particularly useful for hygienic applications, as shown in FIGS. 19-21. The vent unit 562 of the vent structure 560 may be the same as the vent unit 62 or the vent units 162, 262, or 362. The provided gasket structure is the first difference between the vent structure 560 and the vent structure 460. For the purpose of explanation, the frame 502 may include a rectangular frame element 536 having an L-shaped cross section, if necessary, similar to the frame 102 shown in FIG. The frame 502 has a flange that defines an inner vent aperture 538 or legs 502a and legs 502b. A rectangular elastic gasket 582 is placed on the outermost surface of the flange 502a. The rectangular frame member 590 is disposed with respect to the surface of the elastic gasket 582 facing the flange 502a. As can be seen from FIG. 20, the innermost edge 590a of the frame member 590 extends inward beyond the innermost edge of the elastic gasket 582. Another rectangular frame member 592 is disposed relative to the frame member 590. The innermost blank portion of the member 592 is aligned with the inner blank portion of the elastic gasket 582, and therefore does not extend inside the elastic gasket 582 and the frame member 592 as in the case of the frame member 590. The composite vent unit 562 of the vent structure 560 is placed against the outer surface of the frame member 592. A rectangular frame element 536 having a base portion 536a and a downwardly curved outer peripheral lip portion 536b is placed on the edge of the composite vent unit 562. The rectangular holding frame member 596 is positioned on the base portion 536a of the frame element 536. A nut 556 on the stud 550 engages the outer surface of the retaining frame member 596.

Was also mold cutting frame elements 536 (die cut) central portion 584, preferably, either has the same shape as shown to bus Kkusutoppu 86 in FIG. 3, or a bar Kkusutoppu 386 depicted in FIG. 15 Curve away from the rectangular perimeter of the frame element 536 to form an outwardly directed backstop 586 with a similar essentially outer straight section.

As provided by the innermost portion of the frame member 590 adjacent the edge 590a, the gasket 598 of rectangular tubular is configured to opposing surfaces engage with vent unit 562 (engage), are arranged. As can be seen from FIG. 20, gaskets 582 and 598 function as seals that isolate the inner protected space from the surrounding atmosphere.

The main difference between the embodiment of the venting device 630 as shown in FIGS. 22 and 23 and the other embodiments described above is the tubular backstop 686 as an alternative to the upright backstop 86, 186-586. is there. The tubular backstop 686 is integrated with the flat base portion 688a, the opposing curved portion 688b integrated with the base portion 688a, the upper opposing curved portion 688c integrated with the curved portion 688b, and the curved portion 688c. It has a shell 688 that includes a crown segment 688d. Although base portion 688a is shown as a single piece for ease of structure, it should be understood that base portion 688a may be two separate pieces that are adjacent to each other in the center of base portion 688a. is there.

The vent structure of the present invention is particularly useful in relatively large sizes, for example from about 200 mm × 200 mm to about 1500 mm × 2000 mm. The various embodiments described and described herein may be made to open at different overpressures. For example, changing the type and thickness of the material selected for the fabrication of the laminated composite vent unit 62 parts, supplying indentations to the slits in the metal panel, and the length of the slit 70 The opening of the pressure release 74 of the laminated composite vent unit 62 by varying the length of the individual slits defining the low-strength line 72 and / or the slit-free distance between adjacent slits. You can change the overpressure required to affect the.

In addition, the vent device 700 operates in the same manner as the vent device 30 to release the high overpressure condition. The panels 722 and 732 have an overpressure sufficient to separate the tabs of the panels 722 and 732 between adjacent slits 724 and 736, respectively, in the area protected by the circular vent device 700. The pressure release portions 727 and 735 immediately open each to release the high overpressure in the protected area. As can be seen from FIG. 25, the low-strength line 726 in the panel 722 is very adjacent to the arcuate margin inside the frame member 704. Because the low strength line 726 in the panel 722 and the low strength line 734 in the panel 732 are aligned, substantially maximum ventilation through the vent unit 720 is obtained for maximum pressure release. Backstop 710 adjacent pressure releasing unit 727 is engaged (engage) the panel 722, to the extent that they exceed the yield point and the tensile strength of the material of spring steel, excess stress to the hinge region 728 and 738 of the panel 722 and 732 Help to avoid giving. Thus, upon release of the high overpressure condition in the protected area, the panels 722 and 732 are protected in a manner similar to that described for reclosing the pressure relief area of the rectangular vent device 30. Return to their initial position, which substantially closes the vent apertures in the structure of the area.